JP4530071B2 - Display screen turning device and television device - Google Patents

Description

  The present invention relates to a display screen turning device and a television device, and more particularly, to a display screen turning device and a television device that support a display screen portion so as to be rotatable in a front-back direction by a predetermined angle with respect to a vertical plane.

  2. Description of the Related Art Conventionally, there is known a display screen turning device including a display screen support member that supports a display screen unit of a liquid crystal television or the like so as to be rotatable in a front-back direction at a predetermined angle with respect to a vertical plane (for example, Patent Literatures 1 to 3).

  Patent Document 1 discloses a round shaft having a display unit (display screen unit), a stand fixing plate (second support member) provided with a hole (insertion hole), and a lock shaft inserted into the hole. And a display device including a display unit fixing plate (first support member) that supports the display unit is disclosed. In the display device described in Patent Literature 1, when the shaft is pressed, the lock shaft inserted into the hole is detached, and the display unit fixing plate is configured to be rotatable about the shaft. Thus, the display unit can be rotated in the front-rear direction by a predetermined angle with respect to the vertical plane.

  In addition, the display support device (display screen turning device) disclosed in Patent Document 2 is provided with a round shaft-shaped shaft portion, and the display screen portion can be rotated in a longitudinal direction by a predetermined angle with respect to a vertical plane. A support leg (first support member) to be supported on the base, a base (second support member) on which a pair of shaft support parts are provided, and the support leg so as to be in contact with the support leg in a vertical state. And a cover member for preventing the display screen portion from rotating forward from the vertical surface, the shaft portion and the support leg portion are integrally formed of synthetic resin, and the shaft support portion and the base Are integrally formed of synthetic resin. In the display support device described in Patent Document 2, the display screen unit is supported so as to be able to rotate backward by a predetermined angle with respect to the vertical plane by rotating the shaft unit by the shaft support unit. Further, the display support device described in Patent Document 2 is configured so that the display screen portion is not rotated forward from the vertical surface by the cover member.

  Further, Patent Document 3 has a through hole (insertion hole), a main body side bracket (first support member) that supports the television main body (display screen portion), and a through hole (insertion hole). And a stand-side bracket (second support member) that rotatably supports the main body side bracket, and a round shaft shape that rotatably fixes the main body side bracket and the stand side bracket by passing through the respective through holes. A liquid crystal television including a bolt and a nut screwed with the bolt is disclosed. In the liquid crystal television described in Patent Document 3, the main body side bracket is rotated about a round shaft-like bolt that passes through each through hole, whereby the main body of the television is set at a predetermined angle with respect to the vertical plane. It is supported so as to be rotatable in the front-rear direction.

JP 2007-293151 A JP 2006-3737 A Utility Model Registration No. 3106183

  However, in the display device described in Patent Document 1, a shaft is provided separately from the display unit fixing plate and the stand fixing plate so that the display unit can be rotated in the front-rear direction by a predetermined angle with respect to the vertical plane. There is an inconvenience that it is necessary. For this reason, there is a problem that the number of parts increases.

  Further, in the display support device described in Patent Document 2, the cover member prevents the display screen unit from rotating forward from the vertical surface, and therefore the display screen unit is rotated forward from the vertical surface. There is a problem that can not be. Synthetic resins generally have the disadvantage of low mechanical strength. For this reason, when a display screen part and a display support apparatus enlarge, it is thought that there exists a problem that a display support apparatus may be damaged.

  Further, in the liquid crystal television described in Patent Document 3, a bolt is provided separately from the main body side bracket and the stand side bracket so that the television main body portion can be rotated in a longitudinal direction by a predetermined angle with respect to the vertical plane. And there is a disadvantage that it is necessary to provide a nut. For this reason, there is a problem that the number of parts increases.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to suppress damage to the apparatus body and suppress an increase in the number of parts, It is an object of the present invention to provide a display screen turning device capable of rotating a display screen unit in a front-back direction at a predetermined angle with respect to a vertical plane.

Means for Solving the Problems and Effects of the Invention

A display screen turning device according to a first aspect of the present invention supports a first support member made of metal that supports a display screen portion, and the first support member so as to be rotatable in a front-back direction by a predetermined angle with respect to a vertical plane. A second support member made of metal, wherein one of the first support member and the second support member has an insertion hole, and the other of the first support member and the second support member is made of metal. And a flat support shaft inserted into the insertion hole. Also, either the first support member or the second support member is within a range of rotation in the front-rear direction with respect to the vertical surface of the first support member when the support shaft is inserted into the insertion hole. , And a locking member for suppressing the support shaft from being detached from the insertion hole.

In the display screen turning device according to the first aspect, as described above, one of the first support member and the second support member has an insertion hole, and the other of the first support member and the second support member is By having the flat support shaft inserted into the insertion hole, the flat support shaft inserted into the insertion hole is used as a rotation axis, and the first support member is a predetermined angle front-rear direction with respect to the second support member. Therefore, the display screen can be rotated in the front-rear direction by a predetermined angle with respect to the vertical plane. Further, by making the first support member, the second support member and the support shaft made of metal, the mechanical strength is increased as compared with the case where the first support member, the second support member and the support shaft are made of resin. Therefore, when the display screen unit and the display screen turning device are enlarged, it is possible to prevent the device main body from being damaged. In addition, the other of the first support member and the second support member has a flat plate-like support shaft so as to support the display screen unit to rotate in the front-rear direction by a predetermined angle with respect to the vertical plane. Since it is not necessary to provide a separate shaft, an increase in the number of parts can be suppressed. Also, either the first support member or the second support member is within a range of rotation in the front-rear direction with respect to the vertical surface of the first support member when the support shaft is inserted into the insertion hole. , And a locking member for suppressing the support shaft from being detached from the insertion hole. If comprised in this way, when the latching member for suppressing that a support shaft will detach | leave from an insertion hole is provided, at the time of the rotation of the 1st support member at the front-back direction with respect to the vertical surface, Release of the locked state with the second support member can be suppressed. In addition, since either one of the first support member and the second support member integrally includes the locking member, the support shaft is inserted into the first support member or the second support member from the insertion hole. Since there is no need to separately provide a locking member for suppressing separation, an increase in the number of parts can be suppressed.

  In this case, preferably, the first support member has an insertion hole, the second support member integrally has a support shaft and a locking member, and the first support member is perpendicular to the first support member when the apparatus is used. The second support member is configured to release the locked state of the second support member with respect to the first support member when the second support member is rotated larger than the rotational range in the front-rear direction with respect to the surface. If comprised in this way, while using an apparatus, while being able to maintain the latching state of the 2nd support member to the 1st support member, when assembling the 2nd support member to the 1st support member, or the 2nd support When removing the member from the first support member, the first support member is rotated larger than the rotation range with respect to the vertical surface of the first support member when the apparatus is used, whereby the second support member is moved to the first support member. And the second support member can be detached from the first support member.

  In the display screen turning device configured to release the locked state of the second support member to the first support member, preferably, the first support member is connected to the first support member of the second support member. In the state where it is rotated to the position where the locked state is released, it further has a notch for detaching the locking member from the first support member. If comprised in this way, when removing a 2nd support member from a 1st support member, the latching member of a 2nd support member is easily detached from a 1st support member via the notch part of a 1st support member. Therefore, the second support member can be removed from the first support member more easily.

  In the display screen turning device configured such that the second support member has a support shaft and a locking member, preferably, the second support member is made of sheet metal, and the support shaft and the locking member are bent. It is integrally formed on the second support member by processing. If comprised in this way, the 2nd support member which has a support shaft and a locking member can be easily obtained by normal sheet-metal processing.

  In the display screen turning device configured such that the second support member has a support shaft and a locking member, preferably, a pair of locking members are formed on the second support member so as to sandwich the support shaft. . If comprised in this way, compared with the case where only one locking member is provided, the first support member is supported by the second support member at two points. Shaking with the second support member can be suppressed.

A television apparatus according to a second aspect of the present invention includes a display screen portion that displays a television image, a metal first support member that supports the display screen portion, and a first support member that has a predetermined vertical plane. A second support member made of metal that is supported so as to be pivotable in an angle front-rear direction, one of the first support member and the second support member has an insertion hole, and the first support member and the second support member The other is made of metal and integrally has a flat support shaft inserted into the insertion hole. Also, either the first support member or the second support member is within a range of rotation in the front-rear direction with respect to the vertical surface of the first support member when the support shaft is inserted into the insertion hole. , And a locking member for suppressing the support shaft from being detached from the insertion hole.

In the television apparatus according to the second aspect of the present invention, as described above, one of the first support member and the second support member has an insertion hole, and the other of the first support member and the second support member. Has a flat support shaft inserted into the insertion hole, so that the first support member is around a predetermined angle with respect to the second support member with the flat support shaft inserted into the insertion hole as the rotation axis. Since it can be rotated in the direction, the display screen portion can be rotated in the front-rear direction by a predetermined angle with respect to the vertical plane. Further, by making the first support member, the second support member and the support shaft made of metal, the mechanical strength is increased as compared with the case where the first support member, the second support member and the support shaft are made of resin. Therefore, when the display screen unit and the display screen turning device are enlarged, it is possible to prevent the device main body from being damaged. In addition, the other of the first support member and the second support member has a flat plate-like support shaft so as to support the display screen unit to rotate in the front-rear direction by a predetermined angle with respect to the vertical plane. Since it is not necessary to provide a separate shaft, an increase in the number of parts can be suppressed. Also, either the first support member or the second support member is within a range of rotation in the front-rear direction with respect to the vertical surface of the first support member when the support shaft is inserted into the insertion hole. , And a locking member for suppressing the support shaft from being detached from the insertion hole. If comprised in this way, when the latching member for suppressing that a support shaft will detach | leave from an insertion hole is provided, at the time of the rotation of the 1st support member at the front-back direction with respect to the vertical surface, Release of the locked state with the second support member can be suppressed. In addition, since either one of the first support member and the second support member integrally includes the locking member, the support shaft is inserted into the first support member or the second support member from the insertion hole. Since there is no need to separately provide a locking member for suppressing separation, an increase in the number of parts can be suppressed.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an overall configuration of a liquid crystal television provided with a display screen turning device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the liquid crystal television provided with the display screen turning device according to the embodiment of the present invention shown in FIG. 3 to 13 are diagrams showing a detailed structure of the display screen turning device according to the embodiment of the present invention shown in FIG. First, the structure of the display screen turning device 20 according to an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a case will be described in which the present invention is applied to a display screen turning device 20 that supports a liquid crystal television 100 that is an example of a television device.

  As shown in FIG. 1, the display screen turning device 20 according to the embodiment of the present invention moves the display body 10 of the liquid crystal television 100 supported by the display screen support mechanism 80 in the horizontal direction (in the direction of the arrow A and (B direction) is provided to enable turning at a predetermined angle, and is provided to enable tilting at a predetermined angle in the front-rear direction (arrow C direction and D direction) with respect to the vertical plane. It has been. The display body 10 is an example of the “display screen unit” in the present invention.

  As shown in FIG. 3, the display screen turning device 20 includes a display screen support mechanism 80 that supports the display main body 10 (see FIG. 2), and the display main body 10 that is supported by the display screen support mechanism 80 (FIG. 2). 1) and a swivel plate 31 disposed on the pedestal portion 30 to be swiveled in the left-right direction and a swivel plate (see FIG. 1). The horizontal turning drive unit 40 that controls the turning angle of the display 31 and the display main body 10 supported by the display screen support mechanism 80 are set at a predetermined angle in the front-rear direction (arrow C direction and D direction in FIG. 1) with respect to the vertical plane. And a vertical turning drive unit 50 that controls the turning angle of the display screen support mechanism 80.

  4 and 5, the display screen support mechanism 80 includes a sheet metal display screen support member 81, a pair of sheet metal vertical support members 82, and a rack gear 63 of a rack plate 60 described later (see FIG. 4). ) And a rotation gear 83 made of resin. The display screen support member 81 and the vertical support member 82 are examples of the “first support member” and the “second support member” of the present invention, respectively. Further, the display screen support member 81 is attached to the pair of vertical support members 82 so as to be rotatable at a predetermined torque or more.

  Further, as shown in FIG. 8, the display screen support member 81 includes a pair of display body mounting portions 81a that extend in the upward direction (the direction of the arrow Z1), the arrow Y1 direction and the arrow Y2 of the display screen support member 81. It integrally includes a pair of rotating portions 81b provided on each side surface in the direction. In addition, screw insertion holes 81c are formed in the pair of display body mounting portions 81a, respectively.

  Here, in the present embodiment, as shown in FIGS. 6 to 8, the pair of rotating portions 81b of the display screen support member 81 are respectively connected to the display main body attaching portions 81a from both side end portions of the display main body attaching portion 81a. Are provided so as to extend in the vertical direction (the direction of the arrow X1 and the direction of the arrow X2). Moreover, the rotation part 81b has thickness t1 (refer FIG. 8) of the arrow Y1 direction and the arrow Y2 direction. Further, as shown in FIG. 7, a notch portion 81d having a concave shape in the direction of the arrow X2 is formed on the arrow X1 direction side of the pair of rotation portions 81b, respectively, and the pair of rotation portions On the arrow X2 direction side of 81b, projecting pieces 81e having a convex shape toward the arrow X2 direction are formed.

  In the present embodiment, as shown in FIGS. 4 to 7, the pair of rotating portions 81 b are in the vicinity of the rotation center portion of the pair of rotating portions 81 b, and the notches 81 d and the protruding pieces are provided. Fan-shaped holes 81f are respectively formed so as to be sandwiched between 81e. The hole 81f is an example of the “insertion hole” in the present invention. As shown in FIGS. 4 to 6, the hole 81 f is provided for inserting a support shaft 82 d described later. Further, as shown in FIG. 7, the fan-shaped hole portion 81f is arranged so that the root portion 81g on the circular center side is positioned on the upper side, and the root portion on the circular core side as shown in FIG. 81g abuts on a later-described upper surface 82f of the support shaft 82d. Thereby, the base part 81g of the fan-shaped hole part 81f is configured to receive the vertical load of the display main body 10 (see FIG. 2) via the display screen support member 81. Further, the display screen support member 81 is rotatable in a fan-shaped angular range with respect to the support shaft 82d around the root portion 81g of the fan-shaped hole portion 81f supported by the flat support shaft 82d. It is configured.

  As shown in FIGS. 6 and 8, the display screen support member 81 is integrally formed with a body portion 81h provided so as to extend downward from the display body mounting portion 81a (in the direction of the arrow Z2). Yes. In addition, a lower surface portion 81i is formed at the lower end of the body portion 81h so as to extend in a direction perpendicular to the body portion 81h (arrow X1 direction and arrow X2 direction). The lower surface portion 81i is formed integrally with the body portion 81h. As shown in FIG. 6, a screw insertion hole 81j into which a screw 90 for fixing the rotation gear 83 and the display screen support member 81 is inserted is formed at the center of the lower surface portion 81i. Further, a pair of boss insertion holes 81k are formed along the arrow X1 direction and the arrow X2 direction so as to sandwich the screw insertion hole 81j. A pair of bosses 83b (to be described later) of the rotation gear 83 are respectively inserted into the pair of boss insertion holes 81k.

  Further, as shown in FIG. 5, the pair of vertical support members 82 is arranged so that a support shaft 82 d described later is inserted into the hole 81 f of the display screen support member 81 from the inside to the outside of the display screen support member 81. Each is arranged. Specifically, the vertical support member 82 attached to the rotation portion 81b on the arrow Y1 direction side of the display screen support member 81 is disposed so as to contact the surface on the arrow Y2 direction side of the rotation portion 81b on the arrow Y1 direction side. Has been. Further, the vertical support member 82 attached to the rotation portion 81b on the arrow Y2 direction side of the display screen support member 81 is disposed so as to contact the surface on the arrow Y1 direction side of the rotation portion 81b on the arrow Y2 direction side. .

  Further, as shown in FIG. 6, the pair of vertical support members 82 are mirror image symmetric. Therefore, the vertical support member 82 attached to the rotating portion 81b of the display screen support member 81 on the arrow Y2 direction side will be described.

  As shown in FIGS. 6 and 9, the vertical support member 82 includes a swivel plate attachment portion 82 a and a rotation portion attachment portion 82 b. Further, as shown in FIGS. 6 and 10, the swivel plate mounting portion 82a of the vertical support member 82 is provided at the lower portion of the vertical support member 82 so as to extend in the arrow Y1 direction. A screw mounting hole 82 c for fixing to 31 is formed. Further, the rotating portion mounting portion 82b of the vertical support member 82 is provided so as to extend from the end on the arrow Y2 side of the swivel plate mounting portion 82a upward in the vertical direction (arrow Z1 direction) with respect to the swivel plate mounting portion 82a. It has been. Moreover, as shown in FIG. 10, the rotation part attachment part 82b has thickness t2 of the arrow Y1 direction and the arrow Y2 direction.

  Here, in this embodiment, as shown in FIG. 9, the upper part of the rotation part attachment part 82b has a semicircular shape. Further, in the vicinity of the center of the semicircle at the top of the rotating portion mounting portion 82b and on the center line extending in the vertical direction (arrow Z1 direction and arrow Z2 direction) from the center in the arrow X1 direction and arrow X2 direction of the vertical support member Further, a support shaft 82d is formed. As shown in FIG. 10, the support shaft 82d is provided so as to extend in the arrow Y2 direction, and has a flat plate shape that is long in the vertical direction (arrow Z1 direction and arrow Z2 direction). The support shaft 82d is formed integrally with the vertical support member 82 by bending a part of the vertical support member 82 made of sheet metal. As shown in FIG. 9, a hole 82 e is formed in the bent portion of the vertical support member 82.

  As shown in FIGS. 4 to 6, the support shaft 82d is provided to be inserted into the fan-shaped hole 81f of the rotating portion 81b. Specifically, as shown in FIG. 4, the support shaft 82d is configured such that the upper surface 82f of the support shaft 82d is in contact with the root portion 81g of the fan-shaped hole 81f. Thereby, the support shaft 82d is configured to receive a vertical load of the display main body 10 (see FIG. 2) via the root portion 81g of the fan-shaped hole 81f and the display screen support member 81 on the upper surface 82f. The display screen support member 81 is centered on the root portion 81g of the fan-shaped hole portion 81f supported by the flat plate-shaped support shaft 82d, and has an angular range of the fan-shaped hole portion 81f with respect to the support shaft 82d. It is configured to be rotatable. That is, the flat support shaft 82 d functions as a rotation shaft of the display screen support member 81. Thereby, the display screen support member 81 is configured to be able to rotate the display body 10 in the front-rear direction (arrow C direction and D direction) with respect to the vertical plane of the display screen turning device 20.

  In the present embodiment, as shown in FIG. 9, a hook 82g is formed integrally with the vertical support member 82 on the side surface on the arrow X1 direction side from the support shaft 82d of the rotating portion mounting portion 82b. The hook 82g is formed by bending a part of a vertical support member 82 made of sheet metal. The hook 82g is an example of the “locking member” in the present invention. Specifically, as shown in FIG. 11, the hook 82g is formed so as to extend in the direction of the arrow Y2 perpendicular to the rotating portion mounting portion 82b from the side surface (see FIG. 9) on the arrow X1 direction side. Here, the interval L1 between the locking portion of the hook 82g and the rotating portion mounting portion 82b is slightly larger than the thickness t1 of the rotating portion 81b of the display screen support member 81. Furthermore, the hook 82g is formed with a locking portion 82h extending in the arrow X2 direction after extending upward (in the arrow Z1 direction) as shown in FIG. As a result, as shown in FIG. 11, a gap 82i is formed between the hook 82g and the rotating portion mounting portion 82b. The gap 82i is configured to sandwich the display screen support member 81 in a state where the support shaft 82d of the rotation portion attachment portion 82b is inserted into the hole 81f of the display screen support member 81. Accordingly, the vertical support member 82 is configured to be prevented from being detached from the display screen support member 81 by suppressing the support shaft 82d from being detached from the hole 81f in the direction of the arrow Y1.

  Further, as shown in FIG. 9, a hook 82j is formed integrally with the vertical support member 82 on the side surface on the arrow X2 direction side from the support shaft 82d of the rotating portion mounting portion 82b. The hook 82j is formed by bending a part of a vertical support member 82 made of sheet metal. The hook 82j is an example of the “locking member” in the present invention. Specifically, as shown in FIG. 12, the hook 82j has a contact portion 82k extending from the side surface on the arrow X2 direction side (see FIG. 9) so as to extend in the direction of the arrow Y2 perpendicular to the rotating portion mounting portion 82b. Is formed. Here, the distance L2 between the locking portion of the hook 82j and the rotating portion mounting portion 82b is slightly larger than the thickness t1 of the rotating portion 81b of the display screen support member 81. Further, the hook 82j is formed with a locking portion 82l so as to extend upward (in the direction of arrow Z1) on the opposite side (arrow Y2 direction side) of the rotating portion mounting portion 82b of the contact portion 82k. Here, in a state where the support shaft 82d of the rotating portion attachment portion 82b is inserted into the hole 81f of the display screen support member 81, the display screen support member 81 is predetermined in the direction of arrow D (see FIG. 4) with respect to the vertical plane. The projection piece 81e of the rotation portion 81b of the display screen support member 81 is configured to come into contact with the contact portion 82k when the angle is rotated. Further, the locking portion 82l can rotate the display screen support member 81 together with the rotation portion attachment portion 82b in a state where the support shaft 82d of the rotation portion attachment portion 82b is inserted into the hole 81f of the display screen support member 81. It is comprised so that it may pinch | interpose. Accordingly, the vertical support member 82 can be prevented from being detached from the display screen support member 81 by suppressing the support shaft 82d from being detached from the hole 81f in the direction of the arrow Y1. .

  Further, as shown in FIG. 13, the hook 82g and the hook 82j are formed so as to sandwich the support shaft 82d of the rotating portion mounting portion 82b in the arrow X1 direction and the arrow X2 direction.

  In addition, when the display screen turning device 20 is used, the vertical support member 82 is rotated when the display screen support member 81 is rotated more than the rotation range in the front-rear direction (arrow C direction and D direction in FIG. 1) with respect to the vertical plane. The engaging portion 82h of the hook 82g is configured to be detachable from the cutout portion 81d of the rotating portion 81b of the display screen support member 81 in the arrow Y1 direction (see FIG. 6). Furthermore, the movement of the projecting piece 81e of the rotating portion 81b in the arrow Y1 direction and the arrow Y2 direction (see FIG. 6) by the engaging portion 82k of the hook 82j and the rotating portion attaching portion 82b of the vertical support member 82 is restricted. By being released, the hook 82j of the vertical support member 82 is configured to be movable in the arrow Y1 direction. As a result, when the display screen turning device 20 is used, the vertical support member 82 is released from the locked state with respect to the display screen support member 81 when the display screen support member 81 is turned larger than the turning range with respect to the vertical surface. It is configured to be.

  Further, as shown in FIG. 9, a ring-shaped protruding portion 82m is formed on the surface of the rotating portion mounting portion 82b on the arrow Y2 direction side (see FIG. 6) with the approximate center of the support shaft 82d as the center. . As shown in FIG. 6, the protrusion 82 m is arranged so that the display screen support member 81 is perpendicular to the vertical surface in a state where the support shaft 82 d of the rotation portion attachment portion 82 b is inserted into the hole 81 f of the display screen support member 81. When rotating in the front-rear direction (arrow C direction and arrow D direction in FIG. 1), the display screen support member 81 is configured to come into contact with the surface on the arrow Y1 direction side of the rotating portion 81b. Thereby, by reducing the contact area between the rotating portion 81b of the display screen support member 81 and the rotating portion mounting portion 82b, the frictional force acting between the rotating portion 81b and the rotating portion mounting portion 82b is reduced. Is configured to do. Thereby, when the display screen support member 81 is rotated in the front-rear direction with respect to the vertical plane, it is possible to reduce a load applied to the vertical turning drive unit 50, the rack gear 63, and the turning gear 83.

  Further, as shown in FIG. 5, the rotation gear 83 is disposed so as to mesh from above the rack gear 63 of the rack plate 60, and is disposed at substantially the center of the lower surface portion 81 i of the display screen support member 81. Yes. Further, the rack gear 63 and the rotation gear 83 are located on the rotation center line in the left-right direction (arrow G1 direction and arrow G2 direction in FIG. 6) of the revolving plate 31 and the display screen support member 81. Further, as shown in FIG. 6, a pair of bosses 83 b that are inserted into the pair of boss insertion holes 81 k of the display screen support member 81 are formed on the upper surface 83 a of the rotation gear 83. Further, a screw hole 83c into which the screw 90 is screwed is formed at the center between the pair of bosses 83b. The screw hole 83c is formed to correspond to the screw insertion hole 81j of the display screen support member 81.

  Further, as shown in FIG. 6, a tooth surface is formed on the lower surface 83 d of the rotating gear 83 so as to have a downwardly convex shape and an arc shape when viewed from the side. . As a result, the rotation gear 83 slides relative to the rack gear 63 in a direction perpendicular to the arrow S direction and the arrow T direction (see FIG. 3) that are the meshing directions of the rack gear 63 and the rotation gear 83 in the horizontal plane. It is configured as possible. Further, as shown in FIG. 5, the upper surface 83 a of the rotation gear 83 is fixed to the lower surface portion 81 i of the display screen support member 81 by screws 90. As a result, the rotation gear 83 is fixed to the display screen support member 81, so that the rotation of the display screen support member 81 in the horizontal plane meshes with the rotation gear 83 via the rotation gear 83. The rack gear 63 is configured to be transmitted to the rack gear 63.

  As shown in FIGS. 4 and 5, the pedestal portion 30 has a sheet metal turning plate 31 to which the display screen support mechanism 80 is attached, and a plurality of steel balls 32 disposed therein at a predetermined interval and a steel ball. A resin guide member 33 that rotatably holds 32, a base member 34 made of sheet metal, a metal support member (not shown) that rotatably supports the swivel plate 31 on the base member 34, A boss member 35 made of resin, into which a rotation shaft of a gear 45 and a gear 55 described later is rotatably inserted, and a rack plate 60 of the vertical turning drive unit 50 is inserted so as to reciprocate in a horizontal plane, and a boss The ring member 36 is used to prevent the rack plate 60 from being inserted into the member 35.

  Further, as shown in FIGS. 5 and 6, the swivel plate 31 of the pedestal portion 30 includes four screw mounting holes 31 b provided in the upper surface 31 a and a central portion of the upper surface 31 a (near the rotation center point of the swivel plate 31. ) And a hole 31c provided in the above. In addition, as shown in FIG. 3, the swivel plate 31 is disposed substantially at the center of the base member 34 and is disposed so as to be rotatable in a horizontal plane. Further, as shown in FIG. 5, a plurality of support members (not shown) provided on the base member 34 so as to surround the swivel plate 31 in a circular shape include the outer peripheral surface 31 d of the swivel plate 31 and the guide member 33. By making surface contact with the outer peripheral surface 33a, the swivel plate 31 is held so as to be rotatable in a horizontal plane.

  Further, as shown in FIGS. 3 and 5, the vertical turning drive unit 50 includes a transmission gear unit 51 composed of a plurality of gear members, a stepping motor 52 serving as a drive source for the transmission gear unit 51, and a turn of the pedestal unit 30. A display screen support member 81 rotatably provided on a display screen support mechanism 80 mounted on the plate 31 is rotated in the front-rear direction (arrow C direction and D direction in FIG. 1) with respect to a vertical plane. And a rack plate 60.

  As shown in FIG. 3, the transmission gear unit 51 includes a resin gear 53, a torque limiter 70, and a resin gear 54 arranged inside a resin gear box 56, and a gear box. A resin gear 55 is arranged outside the 56. The resin gear 53 integrally includes a large diameter gear portion 53a and a small diameter gear portion 53b. The resin gear 54 integrally includes a large diameter gear portion 54a and a small diameter gear portion 54b. The resin gear 55 integrally includes a large-diameter gear portion 55a and a small-diameter gear portion 55b.

  As shown in FIGS. 3 and 5, a resin worm gear 57 is press-fitted into the rotating shaft of the stepping motor 52. The worm gear 57 is meshed with the large-diameter gear portion 53 a of the gear 53 so that the rotation axis is orthogonal. Therefore, the driving force generated by the stepping motor 52 is transmitted to the gear 53 via the worm gear 57, while the driving force generated by the gear 53 side and the gear group after the gear 53 is applied to the worm gear 57 and the stepping motor 52. It is configured so that it cannot be rotated. That is, only the driving force generated on the stepping motor 52 side by the worm gear 57 is transmitted to the transmission gear unit 51.

  Further, as shown in FIG. 3, the small-diameter gear portion 53 b of the gear 53 is meshed with the driving-side gear 72 of the torque limiter 70. The driven gear 71 of the torque limiter 70 is meshed with the large-diameter gear portion 54 a of the gear 54, and the small-diameter gear portion 54 b of the gear 54 is meshed with the large-diameter gear portion 55 a of the gear 55. Further, the small-diameter gear portion 55 b of the gear 55 is horizontally engaged with the gear portion 62 a of the rack gear 62. Accordingly, the driving force of the stepping motor 52 is configured to be transmitted to the rack plate 60 via the worm gear 57, the gear 53, the torque limiter 70, the gear 54, the gear 55, and the rack gear 62.

  As shown in FIG. 5, the rack plate 60 includes a plate member 61 made of sheet metal and rack gears 62 and 63 made of resin. The rack gear 62 is attached to the lower surface side of the plate member 61 by one screw 90. Further, as shown in FIG. 3, the rack gear 62 is configured to mesh horizontally with a small-diameter gear portion 55b of a gear 55 described later.

  Further, as shown in FIG. 5, the plate member 61 is formed with elongated holes 61a and 61b extending along the longitudinal direction of the plate member 61 in the vicinity of both ends in the longitudinal direction of the plate member 61, respectively. A circular insertion hole 61 c into which the protruding portion 63 a of the rack gear 63 is inserted is formed substantially at the center of the member 61. Further, the plate member 61 has two positioning holes 61d and a screw mounting hole 61e.

  As shown in FIG. 5, the rack gear 62 has a gear portion 62a formed along a side surface portion in the direction of the arrow Y1 in the longitudinal direction, and two bosses 62b and one screw insertion hole 62c. . Therefore, the boss 62b of the rack gear 62 is fitted into the positioning hole 61d of the plate member 61, and the screw 90 is tightened into the screw mounting hole 61e of the plate member 61 via the screw insertion hole 62c of the rack gear 62, whereby the rack gear 62 is It is comprised so that it can attach to the member 61 from the downward direction.

  Further, as shown in FIG. 5, the rack gear 63 has a tooth surface 63 b having a plurality of tooth tips formed in a flat surface on the surface that is the surface on the arrow Z <b> 1 direction disposed on the plate member 61. . In addition, a ring-shaped protrusion 63 a that can be inserted into the insertion hole 61 c of the plate member 61 is formed at a substantially central portion of the back surface 63 c that is a surface on the arrow Z <b> 2 direction side of the rack gear 63. Thereby, in the state which inserted the protrusion part 63a in the insertion hole 61c of the plate member 61, while the tooth surface 63b becomes a horizontal surface (flat surface shape), it is the arrow H1 direction with respect to the plate member 61. And it is comprised so that rotation in the arrow H2 direction (refer FIG. 3) is possible.

  3 and 4, when the rack plate 60 is inserted into the pair of boss members 35 through the long holes 61a and 61b of the plate member 61, the rack plate 60 And it is comprised so that it can reciprocate linearly in the arrow Q direction. Therefore, the rack plate 60 is reciprocated linearly in the direction of the arrow P and the direction of the arrow Q on the revolving plate 31 when the forward / reverse rotation of the stepping motor 52 is transmitted to the rack gear 62 via the transmission gear portion 51. It is configured to be possible.

  Further, as shown in FIGS. 3 and 5, the horizontal turning drive unit 40 rotates the turning plate 31 on the pedestal unit 30 in the horizontal direction (arrow A direction and B direction in FIG. 1) in the horizontal plane. The transmission gear unit 41 and a stepping motor 42 serving as a drive source for the transmission gear unit 41 are configured. Moreover, the horizontal turning drive part 40 is comprised so that it may be arrange | positioned inside the base part 30, as shown in FIG. The transmission gear unit 41 includes a resin gear 43, a torque limiter 75, and a resin gear 44 disposed inside the resin gear box 46, and the resin gear 43 outside the gear box 46. A gear 45 is arranged.

  As shown in FIGS. 3 and 5, a resin worm gear 47 is press-fitted into the rotating shaft of the stepping motor 42. Further, as shown in FIG. 3, the gear 43 integrally includes a large-diameter gear portion 43a and a small-diameter gear portion 43b. The gear 44 integrally includes a large-diameter gear portion 44a and a small-diameter gear portion 44b. Furthermore, the gear 45 integrally includes a large-diameter gear portion 45a and a small-diameter gear portion 45b. Further, a resin-made turning gear member 48 is fixed to the upper surface 31 a of the turning plate 31 of the pedestal 30 by four screws 90.

  Further, the worm gear 47 is meshed with the large-diameter gear portion 43 a of the gear 43 so that the rotation axis is orthogonal, and the small-diameter gear portion 43 b of the gear 43 is meshed with the driving side gear 77 of the torque limiter 75. ing. The driven gear 76 of the torque limiter 75 is engaged with the large diameter gear portion 44 a of the gear 44, and the small diameter gear portion 44 b of the gear 44 is engaged with the large diameter gear portion 45 a of the gear 45. Further, the small-diameter gear portion 45 b of the gear 45 is meshed with the turning gear portion 48 a of the turning gear member 48. Accordingly, the driving force of the stepping motor 42 is configured to be transmitted to the revolving plate 31 via the worm gear 47, the gear 43, the torque limiter 75, the gear 44, the gear 45, and the revolving gear member 48.

  The torque limiters 70 and 75 incorporated in the transmission gear portions 51 and 41 transmit the driving force of the stepping motors 52 and 42 when the driving force of the stepping motors 52 and 42 is equal to or less than a predetermined torque value. When the driving force of the stepping motors 52 and 42 exceeds the predetermined torque value, the driving force of the stepping motors 52 and 42 is not transmitted to the transmission gears 51 and 41. It is configured to have a function.

  As shown in FIGS. 1 and 2, the display main body 10 includes a resin front cabinet 11 and a resin rear cabinet 12. Further, the display main body 10 supports the display screen by tightening the screws 90 into the screw mounting holes (not shown) of the rear cabinet 12 through the screw insertion holes 81c (see FIG. 5) of the display screen support member 81. It is attached to the member 81. The rear cabinet 12 is integrally provided with a notch 12a for covering and disposing the display screen support member 81. In addition, a plurality of screw insertion holes 12 b are provided in the outer peripheral portion of the rear cabinet 12 and are configured to be attached to the front cabinet 11 by screws 91.

  Further, in the display screen turning device 20, as shown in FIG. 4, a resin cover member 21 is attached to the base member 34 by screws (not shown) inserted from the lower surface side of the base member 34 of the pedestal portion 30. It is attached. As shown in FIGS. 1 and 4, the resin cover member 22 covers the pedestal portion 30 from above and is integrated with the swivel plate 31 of the pedestal portion 30 in the horizontal direction (in the directions of arrows A and B in FIG. 1). It is attached to the upper surface 31a of the turning plate 31 with a screw (not shown) so that it can turn in the direction). As shown in FIGS. 2 and 4, the resin cover member 22 has a cutout for arranging the display screen support member 81 so as to be rotatable in the front-rear direction (arrow C direction and D direction in FIG. 1). A portion 22a is provided.

  FIG. 14 is a view for explaining assembly and removal of the display screen support member and the vertical support member according to the embodiment of the present invention. Next, assembly and removal of the display screen support member 81 and the vertical support member 82 attached to the rotating portion 81b on the arrow Y2 direction side according to an embodiment of the present invention will be described with reference to FIGS. .

  When the vertical support member 82 is assembled to the display screen support member 81, the limit of the rotation range in the direction of arrow C relative to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used is exceeded. As shown, the display screen support member 81 is rotated in the direction of arrow C. As a result, the engaging portion 82h of the hook 82g of the vertical support member 82 and the notch portion 81d of the rotating portion 81b of the display screen supporting member 81 correspond to each other, and the engaging portion 82h of the hook 82g is connected to the rotating portion 81b. It will be in the state which can be assembled | attached from the notch part 81d. Further, the protrusion piece 81e of the rotating portion 81b of the display screen support member 81 is restricted from moving in the arrow Y1 direction and the arrow Y2 direction (see FIG. 5) by the engaging portion 82l of the hook 82j of the vertical support member 82. There is no. Thereby, it arrange | positions so that the support shaft 82d of the rotation part attachment part 82b may be inserted in the hole 81f of the rotation part 81b.

  Then, the display screen support member 81 is rotated in the arrow D direction. As a result, as shown in FIG. 5, the engaging portion 82h of the hook 82g cannot be detached from the notch 81d of the rotating portion 81b, and the engaging portion 82l of the hook 82j allows the engaging portion 82b of the rotating portion 81b. The protruding piece 81e is in a state where movement in the arrow Y1 direction and the arrow Y2 direction is restricted. As a result, the vertical support member 82 is assembled to the display screen support member 81.

  Further, when removing the vertical support member 82 from the display screen support member 81, the limit of the rotation range in the direction of arrow C with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used is exceeded. As shown in FIG. 14, the display screen support member 81 is rotated in the arrow C direction. As a result, the locking portion 82h of the hook 82g and the cutout portion 81d of the rotating portion 81b correspond to each other, and the locking portion 82h of the hook 82g can be detached from the cutout portion 81d of the rotating portion 81b. . Further, the restriction of the movement of the protruding piece 81e of the rotating portion 81b in the arrow Y1 direction and the arrow Y2 direction (see FIG. 5) by the locking portion 82l of the hook 82j is released. As a result, the vertical support member 82 becomes movable in the directions indicated by the arrows Y2 and Y1. Accordingly, the vertical support member 82 is detached from the display screen support member 81.

  15 to 17 are diagrams for explaining vertical and horizontal turning operations of the display screen turning device according to the embodiment of the present invention shown in FIG. Next, with reference to FIG. 1, FIG. 3 to FIG. 5, and FIG. 15 to FIG. 17, the turning operation in the front-rear direction and the left-right direction of the display screen turning device 20 according to one embodiment of the present invention will be described.

  As shown in FIG. 4, when the display screen turning device 20 rotates the display screen support mechanism 80 in the front-rear direction (arrow C direction and arrow D direction) with respect to the vertical plane, the display main body shown in FIG. 10 is rotated in an upward direction and a downward direction, and therefore, in the following description of the operation, the front-rear direction is described as an upward direction and a downward direction.

  First, the turning operation of the display screen turning device 20 in the upward and downward directions (arrow C direction and arrow D direction in FIG. 1) will be described.

  First, when a user presses an upward tilt button (not shown) of an attached remote controller (not shown), a signal for turning the display body 10 (see FIG. 1) in an upward direction (arrow C direction in FIG. 1). Is transmitted to a control circuit unit (not shown) of the display body 10. Based on this signal, the stepping motor 52 of the display screen turning device 20 is driven. Specifically, as shown in FIG. 3, as the stepping motor 52 is driven, the worm gear 57 attached to the stepping motor 52 rotates and the driving side gear 72 of the torque limiter 70 is connected via the gear 53. Rotates in the direction of arrow E1. Then, the driven gear 71 of the torque limiter 70 similarly rotates in the arrow E1 direction, and the gear 55 rotates in the arrow E2 direction via the gear 54. As a result, the plate member 61 of the rack plate 60 moves in the arrow P direction together with the rack gear 62 that meshes with the gear 55 in the horizontal direction as the gear 55 rotates in the arrow E2 direction.

  Here, as shown in FIG. 15, when the plate member 61 moves in the arrow P direction, the rack gear 63 is also moved in the arrow S direction along with the plate member 61. Thereby, when the rack gear 63 is moved in the arrow S direction, the rotation gear 83 engaged with the rack gear 63 is rotated in the arrow C direction while maintaining the engagement state. As a result, the display screen support member 81 is turned in the upward direction (arrow C direction) at a predetermined rotational speed. At that time, the display screen support member 81 touches the upper surface 82f of the support shaft 82d while the base portion 81g of the fan-shaped hole 81f of the display screen support member 81 contacts the upper surface 82f of the support shaft 82d of the vertical support member 82. It rotates as the center of rotation.

  When the display body 10 (see FIG. 1) is turned in the direction of arrow C to the angle desired by the user, the user releases the press of the upward tilt button (not shown) of the attached remote control (not shown). As a result, a signal for turning the display main body 10 in the upward direction (arrow C direction) is not transmitted to the control circuit unit (not shown) of the display main body 10, and the driving of the stepping motor 52 is stopped. As a result, the display screen support member 81 stops turning in the direction of arrow C and is stationary.

  Here, in the present embodiment, as shown in FIG. 15, the display body 10 (see FIG. 1) slides in the arrow P direction as shown in FIG. The rack plate 60 is slid in the direction indicated by the arrow P when one end of the inner surface of each of the long holes 61a and 61b of the plate member 61 is brought into contact with the side surface of the boss member 35. Be regulated. Accordingly, the display main body 10 stops turning while stopping turning in the arrow C direction. At this time, the display screen support member 81 reaches a predetermined turning angle. This predetermined turning angle becomes the limit of the turning range in the direction of arrow C with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used.

  Further, in the present embodiment, as shown in FIG. 15, the display screen support member 81 is at the limit of the rotation range in the direction of arrow C with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used. The notch portion 81d of the rotating portion 81b is not located at a position corresponding to the engaging portion 82h of the hook 82g of the vertical support member 82, and the engaging portion 82h of the hook 82g is located on the rotating portion 81b. It cannot detach | leave from the notch part 81d. In this case, the projecting piece 81e of the rotating portion 81b is moved in the direction of the arrow Y1 and the direction of the arrow Y2 by the engaging portion 82k of the hook 82j of the vertical support member 82 provided on the arrow Y1 direction side and the arrow Y2 direction side (see FIG. 5) is restricted. Thus, the locking state of the pair of vertical support members 82 to the display screen support member 81 is maintained in the rotation range in the direction of arrow C with respect to the vertical surface of the display screen support member 81 when the display screen turning device 20 is used. Be drunk.

  At this time, the stepping motor 52 (see FIG. 3) continues to be driven. However, when the driving force of the stepping motor 52 exceeds a predetermined torque value, the driving force of the stepping motor 52 is transmitted to the transmission gear unit 51. Not transmitted. For this reason, when the movement (slide) of the rack plate 60 in the direction of the arrow P is stopped, the rotation is stopped regardless of the driving of the stepping motor 52.

  Further, when the user presses the downward tilt button (not shown) of the attached remote controller (not shown), a signal for turning the display body 10 (see FIG. 1) downward (arrow D direction in FIG. 1). Is transmitted to a control circuit unit (not shown) of the display body 10 and the stepping motor 52 of the display screen turning device 20 is driven. And while the worm gear 57 attached to the stepping motor 52 rotates, as shown in FIG. 3, the drive side gear 72 of the torque limiter 70 rotates in the direction of arrow F1 via the gear 53. Then, the driven gear 71 of the torque limiter 70 rotates in the arrow F1 direction, and the gear 55 rotates in the arrow F2 direction via the gear 54. Then, the rack plate 60 is moved in the arrow Q direction together with the rack gear 62.

  Here, as shown in FIG. 16, when the plate member 61 moves in the arrow Q direction, the rack gear 63 is also moved in the arrow T direction along with the plate member 61. As a result, when the rack gear 63 is moved in the arrow T direction, the rotation gear 83 meshed with the rack gear 63 is rotated in the arrow D direction while maintaining the meshed state. As a result, the display screen support member 81 is turned in the downward direction (arrow D direction) at a predetermined rotational speed. At that time, the display screen support member 81 touches the upper surface 82f of the support shaft 82d while the base portion 81g of the fan-shaped hole 81f of the display screen support member 81 contacts the upper surface 82f of the support shaft 82d of the vertical support member 82. It rotates as the center of rotation.

  When the display main body 10 (see FIG. 1) is turned in the direction of arrow D to the angle desired by the user, the user releases the downward tilt button (not shown) of the attached remote controller (not shown). As a result, a signal for turning the display main body 10 downward (arrow D direction) is not transmitted to the control circuit unit (not shown) of the display main body 10, and the driving of the stepping motor 52 is stopped. As a result, the display screen support member 81 stops turning in the arrow D direction and is stationary.

  Here, in the present embodiment, the display body 10 (see FIG. 1) slides in the arrow Q direction as shown in FIG. 16 in a state in which the turning operation in the downward direction (arrow D direction) is continued by the user. The rack plate 60 is slid in the direction of the arrow Q when the other ends of the inner side surfaces of the long holes 61a and 61b of the plate member 61 are brought into contact with the side surfaces of the boss member 35, respectively. Be regulated. Therefore, the display main body 10 stops turning while stopping turning in the arrow D direction. At this time, the display screen support member 81 reaches a predetermined turning angle. This predetermined turning angle becomes the limit of the turning range in the arrow D direction with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used.

  Further, in the present embodiment, as shown in FIG. 16, the display screen support member 81 is at the limit of the rotation range in the direction of arrow D with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used. The notch portion 81d of the rotating portion 81b is not located at a position corresponding to the engaging portion 82h of the hook 82g of the vertical support member 82, and the engaging portion 82h of the hook 82g is located on the rotating portion 81b. It cannot detach | leave from the notch part 81d. In this case, the projecting piece 81e of the rotating portion 81b is moved in the direction of the arrow Y1 and the direction of the arrow Y2 by the engaging portion 82k of the hook 82j of the vertical support member 82 provided on the arrow Y1 direction side and the arrow Y2 direction side (see FIG. 5) is restricted. Thus, the locking state of the pair of vertical support members 82 to the display screen support member 81 is maintained in the rotation range in the direction of arrow D with respect to the vertical surface of the display screen support member 81 when the display screen turning device 20 is used. Be drunk.

  At this time, the stepping motor 52 (see FIG. 3) continues to be driven. However, when the driving force of the stepping motor 52 exceeds a predetermined torque value, the driving force of the stepping motor 52 is transmitted to the transmission gear unit 51. Not transmitted. For this reason, when the movement (slide) of the rack plate 60 in the arrow Q direction is stopped, the rotation is stopped regardless of the driving of the stepping motor 52.

  Next, the turning operation in the horizontal direction in the horizontal plane of the display screen turning device 20 will be described.

  First, when a user presses a horizontal turn button (not shown) of an attached remote controller (not shown), a signal for turning the display body 10 (see FIG. 1) in the left direction (direction of arrow A in FIG. 1) is received. While being transmitted to the control circuit part (not shown) of the display body 10, the stepping motor 42 of the display screen turning device 20 is driven. Specifically, as shown in FIG. 3, the worm gear 47 attached to the stepping motor 42 rotates as the stepping motor 42 is driven, and the driving side gear 77 of the torque limiter 75 is rotated via the gear 43. Rotates in the direction of arrow E3. Then, the driven gear 76 of the torque limiter 75 rotates in the direction of the arrow E3, and the turning gear member 48 rotates in the direction of the arrow E4 via the gear 44 and the gear 45. As a result, the turning plate 31 on the pedestal 30 to which the display screen support member 81 is attached turns in the direction indicated by the arrow G1, so that the display body 10 moves in the left direction (the direction indicated by the arrow A in FIG. 1). ) At a predetermined rotational speed. At this time, the rotation gear 83 fixed to the display screen support member 81 is also rotated in the arrow H1 direction as the display screen support member 81 rotates. At this time, the rack gear 63 (see FIG. 4) arranged so as to mesh with the rotation gear 83 is also rotated with the rotation of the rotation gear 83 while maintaining the mesh.

  When the display main body 10 (see FIG. 1) is turned to the angle desired by the user, the user releases the press of the horizontal turn button (not shown) of the attached remote controller (not shown), thereby displaying the display. A signal for turning the main body 10 in the left direction (the direction of arrow A in FIG. 1) is not transmitted to the control circuit unit (not shown) of the display main body 10, and the driving of the stepping motor 42 is stopped. Thereby, as shown in FIG. 17, the base part 30 stops turning in the direction of the arrow G1 and stops.

  Further, in a state in which the turning operation of the display main body 10 (see FIG. 1) in the left direction (the direction of arrow A in FIG. 1) is continued by the user, the turning angle of the pedestal 30 is maximum (in this embodiment, 30 degrees). ), The swivel plate 31 abuts against a stopper member (not shown) provided inside the pedestal portion 30 to restrict the swivel operation in the left direction (arrow A direction in FIG. 1). The Accordingly, the pedestal 30 is stopped while stopping turning in the direction of the arrow G1. At this time, the stepping motor 42 (see FIG. 3) continues to be driven. However, when the driving force of the stepping motor 42 exceeds a predetermined torque value, the driving force of the stepping motor 42 is transmitted to the transmission gear unit 41 ( (See FIG. 3). For this reason, when the turning plate 31 comes into contact with a stopper member (not shown), the rotation is stopped regardless of the driving of the stepping motor 42.

  In addition, although said turning operation demonstrated the case where the base part 30 was turned in the arrow G1 direction shown in FIG. 3, also in the turning operation | movement which turns the turning board 31 in the arrow G2 direction opposite to the arrow G1 direction. The horizontal turning drive unit 40 performs the same turning operation as described above. Therefore, the display main body 10 (see FIG. 1) can be turned in the right direction (the direction of arrow B in FIG. 1) by turning the turning plate 31 in the direction of the arrow G2.

  In the present embodiment, as described above, the display screen support member 81 has the hole 81f, and the vertical support member 82 has the flat support shaft 82d inserted into the hole 81f. With the flat support shaft 82d inserted into 81f as a rotation axis, the display screen support member 81 is rotated by a predetermined angle in the front-rear direction (arrow C direction and arrow D direction in FIG. 1) with respect to the vertical support member 82. Therefore, the display body 10 can be rotated in the front-rear direction by a predetermined angle with respect to the vertical plane. Further, the display screen support member 81, the vertical support member 82, and the support shaft 82d are made of metal, so that the display screen support member 81, the vertical support member 82, and the support shaft 82d are mechanical compared to the case where the display screen support member 81, the vertical support member 82, and the support shaft 82d are made of resin. Since the strength can be increased, it is possible to prevent the display screen turning device 20 body from being damaged when the display body 10 and the display screen turning device 20 are enlarged. Further, since the vertical support member 82 integrally has a flat plate-like support shaft 82d, it is necessary to separately provide the support shaft 82d in order to rotate the display body 10 in the front-rear direction by a predetermined angle with respect to the vertical surface. Therefore, it is possible to suppress an increase in the number of parts.

  Further, in the present embodiment, when the vertical support member 82 is inserted into the hole 81f of the support shaft 82d, the front and rear direction with respect to the vertical surface of the display screen support member 81 when the display screen turning device 20 is used (FIG. 1). In the rotation range in the direction of arrow C and arrow D), hooks 82g and 82j for suppressing the support shaft 82d from detaching from the hole 81f are provided, so that the display screen support member 81 is perpendicular to the vertical surface. It is possible to prevent the locked state between the display screen support member 81 and the vertical support member 82 from being released during the rotation in the front-rear direction. Further, since the vertical support member 82 integrally has the hooks 82g and 82j, it is possible to suppress the support shaft 82d from being detached from the hole 81f in either the display screen support member 81 or the vertical support member 82. Since it is not necessary to separately provide the locking member, it is possible to suppress an increase in the number of parts.

  Further, in the present embodiment, the display screen support member 81 is rotated more than the rotation range in the forward direction (the direction of arrow C in FIG. 1) with respect to the vertical plane of the display screen support member 81 when the display screen turning device 20 is used. When the display screen turning device 20 is used, the vertical screen support device 82 can be moved to the display screen support member 81 when the display screen turning device 20 is used. The display screen support member 81 is displayed when the vertical support member 82 is assembled to the display screen support member 81 or when the vertical support member 82 is removed from the display screen support member 81. When the screen turning device 20 is used, the display screen support member 81 is rotated larger than the rotation range with respect to the vertical surface, whereby the vertical support member 82 is displayed on the display screen. It is possible to assemble the support member 81, can be detached vertical support member 82 from the display screen support member 81.

  In the present embodiment, the hook 82g is moved from the display screen support member 81 in a state in which the display screen support member 81 is rotated to a position where the vertical support member 82 is unlocked from the display screen support member 81. When the vertical support member 82 is removed from the display screen support member 81, the hook 82g of the vertical support member 82 is provided via the notch portion 81d of the display screen support member 81 when the vertical support member 82 is removed from the display screen support member 81. Since the display screen support member 81 can be easily detached, the vertical support member 82 can be more easily detached from the display screen support member 81.

  In this embodiment, the vertical support member 82 is made of sheet metal, and the support shaft 82d and the hooks 82g and 82j are integrally formed on the vertical support member 82 by bending, thereby performing normal sheet metal processing. The vertical support member 82 having the support shaft 82d and the hooks 82g and 82j can be easily obtained.

  In the present embodiment, the display screen support member 81 is formed by forming a pair of hooks 82g and 82j on the vertical support member 82 so as to sandwich the support shaft 82d, as compared with the case where only one hook is provided. Is supported by the vertical support member 82 at two points, so that the display screen support member 81 and the vertical support member 82 can be prevented from rattling when the display screen turning device 20 is used.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above embodiment, an example in which a display screen turning device is provided in a liquid crystal television as an example of a television device has been described. However, the present invention is not limited to this, and a display screen unit other than a liquid crystal panel such as an organic EL panel is provided. A display screen turning device may be provided in a television device having the above.

  In the above embodiment, the hole 81f (insertion hole) is formed in the display screen support member 81 (first support member), and the support shaft 82d and the hooks 82g and 82j are formed in the vertical support member 82 (second support member). Although an example in which the (locking member) is integrally formed has been shown, the present invention is not limited thereto, and an insertion hole is formed in the second support member, and a support shaft and a lock member are formed in the first support member. The insertion hole and the locking member are integrally formed on one of the first support member and the second support member, and the first support member and the second support member On the other side, a support shaft may be integrally formed.

  In the above embodiment, the hooks 82g and 82j are integrally formed on the vertical support member 82. However, the present invention is not limited to this, and the locking member may be the first support member or the second support member. It may be provided separately.

  In the above embodiment, the display screen support member 81 and the vertical support member 82 are made of sheet metal. However, the present invention is not limited to this, and the first support member and the second support member may be made of metal. For example, it is not limited to sheet metal.

  In the above embodiment, the example in which the pair of hooks 82g and 82j are formed so as to sandwich the support shaft 82d in the vertical support member 82 is shown, but the present invention is not limited to this, and the number of the locking members is one or Three or more may be sufficient.

  In the above embodiment, the rack gear 63 provided on the upper surface of the plate member 61 and the display screen support member for rotating the television body 10 (display screen portion) in the front-rear direction at a predetermined angle with respect to the vertical plane. Although the example using the rotation gear 83 provided on the lower surface portion 81i of 81 is shown, the present invention is not limited to this, and the upper surface of the plate member and the lower surface of the display screen support member are formed using a pin member or the like. You may comprise so that a display screen part may be rotated to a predetermined angle front-back direction with respect to a vertical surface by fixing so that rotation is possible.

  Moreover, in the said embodiment, although the example which provides the stepping motors 42 and 52 as a drive source of the horizontal turning drive part 40 and the vertical turning drive part 50 was shown, respectively, this invention is not limited to this and is horizontal by one drive source. You may make it drive both a turning drive part and a vertical turning drive part.

It is the perspective view which showed the whole structure of the liquid crystal television provided with the display screen turning apparatus by one Embodiment of this invention. FIG. 2 is an exploded perspective view of a liquid crystal television provided with a display screen turning device according to an embodiment of the present invention shown in FIG. 1. It is a top view of the display screen turning apparatus by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating the structure of the display screen turning apparatus by one Embodiment of this invention shown in FIG. It is a disassembled perspective view for demonstrating the detailed structure of the display screen turning apparatus by one Embodiment of this invention shown in FIG. It is a disassembled perspective view for demonstrating the detailed structure of the display screen support mechanism by one Embodiment of this invention, and a turning board. It is the side view which looked at the display screen support member by one Embodiment of this invention from the arrow Y2 direction of FIG. It is the front view which looked at the display screen support member by one Embodiment of this invention from the arrow X1 direction of FIG. It is the front view which looked at the vertical support member attached to the rotation part by the side of the arrow Y2 of FIG. 6 of the display screen support member by one Embodiment of this invention from the arrow Y2. FIG. 10 is a cross-sectional view taken along line 200-200 of the vertical support member of FIG. 9 according to an embodiment of the present invention. FIG. 10 is a side view of the vertical support member of FIG. 9 as viewed from the direction of arrow X1 according to an embodiment of the present invention. FIG. 10 is a side view of the vertical support member of FIG. 9 viewed from the direction of arrow X2 according to an embodiment of the present invention. It is the top view which looked at the display screen support member and vertical support member by one Embodiment of this invention from upper direction (arrow Z1 direction of FIG. 5). It is a figure for demonstrating the assembly | attachment and removal of the display screen support member and vertical support member by one Embodiment of this invention. It is sectional drawing for demonstrating the turning operation | movement of the upward direction (arrow C direction) of the display screen turning apparatus by one Embodiment of this invention shown in FIG. It is sectional drawing for demonstrating the turning operation | movement of the downward direction (arrow D direction) of the display screen turning apparatus by one Embodiment of this invention shown in FIG. It is a top view for demonstrating the turning operation | movement of the left direction (arrow A direction) of the display screen turning apparatus by one Embodiment of this invention shown in FIG.

Explanation of symbols

10 Display body (display screen)
20 Display screen turning device 81 Display screen support member (first support member)
81d Notch 81f Hole (insertion hole)
82 Vertical support member (second support member)
82d Support shaft 82g, 82j Hook (locking member)
100 LCD television (television equipment)

Claims (6)

A metal first support member for supporting the display screen unit;
A second support member made of metal that supports the first support member so as to be pivotable in a longitudinal direction at a predetermined angle with respect to a vertical plane;
One of the first support member and the second support member has an insertion hole, and the other of the first support member and the second support member is made of metal and is inserted into the insertion hole. a plate-shaped support shaft possess integrally,
One of the first support member and the second support member rotates in the front-rear direction with respect to the vertical surface of the first support member when the apparatus is used when the support shaft is inserted into the insertion hole. A display screen swivel device integrally including a locking member for suppressing the support shaft from being detached from the insertion hole within the range . The first support member has the insertion hole, the second support member integrally has the support shaft and the locking member,
When the first support member is rotated larger than the rotation range in the front-rear direction with respect to the vertical surface of the first support member when the apparatus is used, the second support member is locked to the first support member. The display screen turning device according to claim 1 , wherein the display screen turning device is configured to be released from the state. The first support member is configured to disengage the locking member from the first support member in a state where the first support member is rotated to a position where the locked state of the second support member to the first support member is released. The display screen turning device according to claim 2 , further comprising a notch. The second support member is made of sheet metal,
The display screen turning device according to claim 2 or 3 , wherein the support shaft and the locking member are integrally formed with the second support member by bending. The display screen turning device according to any one of claims 2 to 4 , wherein a pair of the locking members are formed on the second support member so as to sandwich the support shaft. A display screen for displaying TV images;
A metal first support member for supporting the display screen unit;
A second support member made of metal that supports the first support member so as to be pivotable in a longitudinal direction at a predetermined angle with respect to a vertical plane;
One of the first support member and the second support member has an insertion hole, and the other of the first support member and the second support member is made of metal and is inserted into the insertion hole. a plate-shaped support shaft possess integrally,
One of the first support member and the second support member rotates in the front-rear direction with respect to the vertical surface of the first support member when the apparatus is used when the support shaft is inserted into the insertion hole. The television apparatus which has integrally the latching member for suppressing that the said support shaft remove | deviates from the said insertion hole within the range .

Images